SCART/euro - that's true. Composite or S-VIDEO out is not supported. I guess it should be possible to add AD724 (or similar) IC into the Arvid circuit to support both. Maybe S-Video can be achieved even by reprogramming the code that generates the videosignal on PRU, but that would require more investigation/time (anybody feel free to experiment, remember the source code is there and is open).

My near future goals with Arvid is to produce a public port of Arvid-Mame for Win, Lin, and Osx (along with reasonably presentable source code ), so that people could actually do something fancy with the board straight away.

Edit:I've released first public version of arvidmame - an unofficial port of mame that outputs the video via Arvid.Links are on the Arvid web page I mentioned on the top post.